KILAUEA, ONE OF the most active volcanoes in the world, began erupting today after a three-month pause, displaying spectacular fountains of mesmerising, glowing lava on Hawaii’s Big Island.

The US Geological Survey’s Hawaiian volcano observatory said in a statement that a glow was detected in webcam images from Kilauea’s summit early in the morning, indicating that an eruption was occurring within the Halemaumau crater in the summit caldera.

The images show fissures at the base of the crater generating lava flows on the crater floor’s surface, the observatory said.

Before issuing the eruption notice, the observatory said increased earthquake activity and changes in the patterns of ground deformation at the summit started last night, indicating the movement of magma in the subsurface.

“We’re not seeing any signs of activity out on the rift zones right now,” said Mike Zoeller, a geologist with the observatory.

“There’s no reason to expect this to transition into a rift eruption that would threaten any communities here on the island with lava flows or anything like that.”

All activity was within a closed area of Hawaii Volcanoes National Park.

“The lava this morning is all confined within … the summit caldera. So plenty of room for it still to produce more without threatening any homes or infrastructure,” said park spokesperson Jessica Ferracane. “So that’s the way we like our eruptions here.”

She said park officials are bracing for crowds to arrive because visitors can see the eruption from many overlooks.

“Kilauea overlook was spectacular this morning,” she said of the vast lava lake.

“It was molten red lava. There’s several areas of pretty robust fountaining. It’s just really, really pretty.”

The lava lake, covering the crater floor over lava that remained from previous eruptions, measured about 150 hectares at 6am, Zoeller said.

It measured about 1,300 metres wide.

A 2018 Kilauea eruption destroyed more than 700 homes.

Before the major 2018 eruption, Kilauea had been erupting since 1983, and streams of lava occasionally covered farms and homes.

During that time, the lava sometimes reached the ocean, causing dramatic interactions with the water.